[Users] Boot from ISCSI issue

Hi, I am noticing that whenever a ovirt host is being put into maintenance the iscsi connection for the root volume is disconnected as well. Is this expected behaviour? If so is there a way around this? Hosts are Centos 5.3 nodes running the dreyou stable 3.1 build. Booting from the same iscsi array that the data centre has as it's storage. Jason